/*
 * Copyright (c) 2001-2008 JGoodies Karsten Lentzsch. All Rights Reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *  o Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 *
 *  o Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *
 *  o Neither the name of JGoodies Karsten Lentzsch nor the names of
 *    its contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package com.jgoodies.looks.common;

import com.jgoodies.looks.Options;

import javax.swing.*;
import java.awt.*;

/**
 * An <code>Icon</code> with a minimum size that is read from the
 * <code>UIManager</code> <code>defaultIconSize</code> key.
 *
 * @author Karsten Lentzsch
 * @version $Revision: 1.5 $
 */

public class MinimumSizedIcon implements Icon {

    private final Icon icon;
    private final int width;
    private final int height;
    private final int xOffset;
    private final int yOffset;


    public MinimumSizedIcon() {
        this(null);
    }

    public MinimumSizedIcon(Icon icon) {
        Dimension minimumSize = Options.getDefaultIconSize();
        this.icon = icon;
        int iconWidth = icon == null ? 0 : icon.getIconWidth();
        int iconHeight = icon == null ? 0 : icon.getIconHeight();
        width = Math.max(iconWidth, Math.max(20, minimumSize.width));
        height = Math.max(iconHeight, Math.max(20, minimumSize.height));
        xOffset = Math.max(0, (width - iconWidth) / 2);
        yOffset = Math.max(0, (height - iconHeight) / 2);
    }


    public int getIconHeight() {
        return height;
    }

    public int getIconWidth() {
        return width;
    }


    public void paintIcon(Component c, Graphics g, int x, int y) {
        if (icon != null)
            icon.paintIcon(c, g, x + xOffset, y + yOffset);
    }


}